Recorded volume holograms with multiple adhesive layers

Abstract

The invention provides a hologram-recording subject plate comprising a block and a variety of subjects fixedly contained therein, which ensures easy, stable yet continuous recording of a multiplicity of identical holograms or different holograms reconstructible by illuminating light as is the case with a hologram-replicating method, a hologram-making method using the same, and a hologram-recorded article. The subject plate comprises a transparent solid block 5 and a hologram-recording subject S contained therein. A photosensitive material film 1 is applied directly onto one surface of the subject plate, and the subject plate is then irradiated with laser light 7 through the photosensitive material film 1. Such simple operation enables a multiplicity of identical holograms to be recorded in an easy, stable yet continuous manner.

What we claim is: 
     
       1. A volume type hologram-recorded article, resulting from the process of: providing of photosensitive material film including at least one photosensitive material layer and support film layers on both sides thereof; and   providing a protective film including at least two adhesive layers and at least two cover sheet layers,   wherein said photosensitive material film is periodically provided thereon with hologram-recorded areas at a constant inter-frame interval, said hologram-recorded areas being of constant size as viewed in a longitudinal direction of said film, and   wherein one of said support film layers is removed from said photosensitive material film to expose one side of said photosensitive material layer for recording said hologram-recorded areas thereon and one of said cover sheet layers is removed from said protective film so that said protective film adheres to the one side of said photosensitive material layer of said photosensitive material film, and   wherein said photosensitive material layer is no longer photosensitive after it has been recorded on.   
     
     
       2. The hologram-recorded article according to claim 1, characterized in that a volume phase type hologram has been recorded in said hologram-recorded areas. 
     
     
       3. The hologram-recorded article according to claim 2, characterized in that at least said hologram-recording areas have been treated to widen a bandwidth of diffracted wavelength. 
     
     
       4. The hologram-recording member according to any one of claims 1 to 3, characterized in that one of said support film layers comprises, in order from said photosensitive material layer side, a colored or patterned transparent or opaque film, an adhesive or self-adhesive layer, and a releasable cover film. 
     
     
       5. A volume type hologram-recorded article wherein the hologram-recorded article is a laminate comprising: in order from a hologram-viewing side, a protective film, a hologram-recorded layer, a first adhesive layer, a colored or patterned transparent or opaque film, a second adhesive layer, and a releasable cover film,   which are layered directly adjacent to each other in the above-mentioned order.   
     
     
       6. The hologram-recorded article according to claim 5, characterized in that the member, from which said cover film is released, is applied at the adhesive or self-adhesive layer located thereon onto a printed member. 
     
     
       7. The hologram-recorded article according to claim 5 or 6, characterized in that said hologram-recorded layer has a wavelength multiplex volume phase type of hologram recorded thereon, and has been treated to widen a bandwidth of diffracted wavelength. 
     
     
       8. A volume hologram-recorded article comprising: a protective film including at least two adhesive layers,   wherein said hologram-recorded article has a wavelength multiplex volume phase type of hologram recorded thereon, and has been treated to widen a bandwidth of diffracted wavelength.